100071572 has 6 divisors (see below), whose sum is σ = 175125258. Its totient is φ = 50035784.

The previous prime is 100071563. The next prime is 100071581. The reversal of 100071572 is 275170001.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (100071563) and next prime (100071581).

It can be written as a sum of positive squares in only one way, i.e., 53640976 + 46430596 = 7324^2 + 6814^2 .

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, 12508943 + ... + 12508950.

It is an arithmetic number, because the mean of its divisors is an integer number (29187543).

Almost surely, 2^100071572 is an apocalyptic number.

It is an amenable number.

100071572 is a deficient number, since it is larger than the sum of its proper divisors (75053686).

100071572 is a wasteful number, since it uses less digits than its factorization.

100071572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25017897 (or 25017895 counting only the distinct ones).

The product of its (nonzero) digits is 490, while the sum is 23.

The square root of 100071572 is about 10003.5779599101. The cubic root of 100071572 is about 464.2695928851.

The spelling of 100071572 in words is "one hundred million, seventy-one thousand, five hundred seventy-two".