145308746 has 8 divisors (see below), whose sum is σ = 237777984. Its totient is φ = 66049420.

The previous prime is 145308743. The next prime is 145308773. The reversal of 145308746 is 647803541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×145308746² = 42229263328185032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145308743) 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, 3302450 + ... + 3302493.

It is an arithmetic number, because the mean of its divisors is an integer number (29722248).

Almost surely, 2^145308746 is an apocalyptic number.

145308746 is a deficient number, since it is larger than the sum of its proper divisors (92469238).

145308746 is a wasteful number, since it uses less digits than its factorization.

145308746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6604956.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 145308746 is about 12054.4077415691. The cubic root of 145308746 is about 525.7314020428.

The spelling of 145308746 in words is "one hundred forty-five million, three hundred eight thousand, seven hundred forty-six".