145124552 has 8 divisors (see below), whose sum is σ = 272108550. Its totient is φ = 72562272.

The previous prime is 145124521. The next prime is 145124561. The reversal of 145124552 is 255421541.

It can be written as a sum of positive squares in only one way, i.e., 102535876 + 42588676 = 10126^2 + 6526^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×145124552² = 42122271186401408, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9070277 + ... + 9070292.

Almost surely, 2^145124552 is an apocalyptic number.

It is an amenable number.

145124552 is a deficient number, since it is larger than the sum of its proper divisors (126983998).

145124552 is a wasteful number, since it uses less digits than its factorization.

145124552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18140575 (or 18140571 counting only the distinct ones).

The product of its digits is 8000, while the sum is 29.

The square root of 145124552 is about 12046.7652089679. The cubic root of 145124552 is about 525.5091683090.

The spelling of 145124552 in words is "one hundred forty-five million, one hundred twenty-four thousand, five hundred fifty-two".