145370638 has 16 divisors (see below), whose sum is σ = 263866464. Its totient is φ = 58636800.

The previous prime is 145370627. The next prime is 145370639. The reversal of 145370638 is 836073541.

It is a super-2 number, since 2×145370638² = 42265244785054088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145370597 and 145370606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145370639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 305163 + ... + 305638.

It is an arithmetic number, because the mean of its divisors is an integer number (16491654).

Almost surely, 2^145370638 is an apocalyptic number.

145370638 is a deficient number, since it is larger than the sum of its proper divisors (118495826).

145370638 is a wasteful number, since it uses less digits than its factorization.

145370638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610827.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 145370638 is about 12056.9746619954. The cubic root of 145370638 is about 525.8060338186.

The spelling of 145370638 in words is "one hundred forty-five million, three hundred seventy thousand, six hundred thirty-eight".