145861732 has 12 divisors (see below), whose sum is σ = 255371116. Its totient is φ = 72898560.

The previous prime is 145861711. The next prime is 145861739. The reversal of 145861732 is 237168541.

It can be written as a sum of positive squares in 2 ways, for example, as 92044836 + 53816896 = 9594^2 + 7336^2 .

It is a junction number, because it is equal to n+sod(n) for n = 145861691 and 145861700.

It is not an unprimeable number, because it can be changed into a prime (145861739) 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, 4132 + ... + 17572.

Almost surely, 2^145861732 is an apocalyptic number.

It is an amenable number.

145861732 is a deficient number, since it is larger than the sum of its proper divisors (109509384).

145861732 is a wasteful number, since it uses less digits than its factorization.

145861732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16158 (or 16156 counting only the distinct ones).

The product of its digits is 40320, while the sum is 37.

The square root of 145861732 is about 12077.3230477619. The cubic root of 145861732 is about 526.3974644806.

It can be divided in two parts, 1458 and 61732, that added together give a triangular number (63190 = T₃₅₅).

The spelling of 145861732 in words is "one hundred forty-five million, eight hundred sixty-one thousand, seven hundred thirty-two".