145051924 has 6 divisors (see below), whose sum is σ = 253840874. Its totient is φ = 72525960.

The previous prime is 145051903. The next prime is 145051967. The reversal of 145051924 is 429150541.

It can be written as a sum of positive squares in only one way, i.e., 140849424 + 4202500 = 11868^2 + 2050^2 .

It is a super-2 number, since 2×145051924² = 42080121312203552, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18131487 + ... + 18131494.

Almost surely, 2^145051924 is an apocalyptic number.

It is an amenable number.

145051924 is a deficient number, since it is larger than the sum of its proper divisors (108788950).

145051924 is a wasteful number, since it uses less digits than its factorization.

145051924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36262985 (or 36262983 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 145051924 is about 12043.7504125584. The cubic root of 145051924 is about 525.4214894888.

The spelling of 145051924 in words is "one hundred forty-five million, fifty-one thousand, nine hundred twenty-four".