150420031 has 4 divisors (see below), whose sum is σ = 150497352. Its totient is φ = 150342712.

The previous prime is 150420019. The next prime is 150420041. The reversal of 150420031 is 130024051.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 150420031 - 2⁵ = 150419999 is a prime.

It is a super-2 number, since 2×150420031² = 45252371452081922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 150419987 and 150420014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150420041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35665 + ... + 39658.

It is an arithmetic number, because the mean of its divisors is an integer number (37624338).

Almost surely, 2^150420031 is an apocalyptic number.

150420031 is a deficient number, since it is larger than the sum of its proper divisors (77321).

150420031 is an equidigital number, since it uses as much as digits as its factorization.

150420031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77320.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 150420031 is about 12264.5844201913. The cubic root of 150420031 is about 531.8247663299.

Adding to 150420031 its reverse (130024051), we get a palindrome (280444082).

The spelling of 150420031 in words is "one hundred fifty million, four hundred twenty thousand, thirty-one".