153450634 has 4 divisors (see below), whose sum is σ = 230175954. Its totient is φ = 76725316.

The previous prime is 153450623. The next prime is 153450673. The reversal of 153450634 is 436054351.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 436054351 = 19 ⋅22950229.

It can be written as a sum of positive squares in only one way, i.e., 152646025 + 804609 = 12355^2 + 897^2 .

It is a junction number, because it is equal to n+sod(n) for n = 153450596 and 153450605.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38362657 + ... + 38362660.

Almost surely, 2^153450634 is an apocalyptic number.

153450634 is a deficient number, since it is larger than the sum of its proper divisors (76725320).

153450634 is an equidigital number, since it uses as much as digits as its factorization.

153450634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76725319.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 153450634 is about 12387.5192835370. The cubic root of 153450634 is about 535.3727091092.

The spelling of 153450634 in words is "one hundred fifty-three million, four hundred fifty thousand, six hundred thirty-four".