145297434 has 48 divisors (see below), whose sum is σ = 304286976. Its totient is φ = 46247040.

The previous prime is 145297429. The next prime is 145297441. The reversal of 145297434 is 434792541.

It is a super-2 number, since 2×145297434² = 42222688653968712, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145297392 and 145297401.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 651447 + ... + 651669.

It is an arithmetic number, because the mean of its divisors is an integer number (6339312).

Almost surely, 2^145297434 is an apocalyptic number.

145297434 is an abundant number, since it is smaller than the sum of its proper divisors (158989542).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145297434 is a wasteful number, since it uses less digits than its factorization.

145297434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403 (or 372 counting only the distinct ones).

The product of its digits is 120960, while the sum is 39.

The square root of 145297434 is about 12053.9385264734. The cubic root of 145297434 is about 525.7177593037.

The spelling of 145297434 in words is "one hundred forty-five million, two hundred ninety-seven thousand, four hundred thirty-four".