145373238 has 32 divisors (see below), whose sum is σ = 323445600. Its totient is φ = 48398688.

The previous prime is 145373233. The next prime is 145373243. The reversal of 145373238 is 832373541.

It is an interprime number because it is at equal distance from previous prime (145373233) and next prime (145373243).

It is a super-2 number, since 2×145373238² = 42266756653209288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145373231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86268 + ... + 87936.

It is an arithmetic number, because the mean of its divisors is an integer number (10107675).

Almost surely, 2^145373238 is an apocalyptic number.

145373238 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

145373238 is an abundant number, since it is smaller than the sum of its proper divisors (178072362).

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

145373238 is a wasteful number, since it uses less digits than its factorization.

145373238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3293 (or 3287 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 145373238 is about 12057.0824829226. The cubic root of 145373238 is about 525.8091685359.

It can be divided in two parts, 1453 and 73238, that added together give a triangular number (74691 = T₃₈₆).

The spelling of 145373238 in words is "one hundred forty-five million, three hundred seventy-three thousand, two hundred thirty-eight".