1012109972 has 6 divisors (see below), whose sum is σ = 1771192458. Its totient is φ = 506054984.

The previous prime is 1012109971. The next prime is 1012109983. The reversal of 1012109972 is 2799012101.

It can be written as a sum of positive squares in only one way, i.e., 555262096 + 456847876 = 23564^2 + 21374^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012109971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126513743 + ... + 126513750.

It is an arithmetic number, because the mean of its divisors is an integer number (295198743).

Almost surely, 2^1012109972 is an apocalyptic number.

It is an amenable number.

1012109972 is a deficient number, since it is larger than the sum of its proper divisors (759082486).

1012109972 is a wasteful number, since it uses less digits than its factorization.

1012109972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253027497 (or 253027495 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 32.

The square root of 1012109972 is about 31813.6758643197. The cubic root of 1012109972 is about 1004.0204714799.

The spelling of 1012109972 in words is "one billion, twelve million, one hundred nine thousand, nine hundred seventy-two".