147087972 has 18 divisors (see below), whose sum is σ = 371805798. Its totient is φ = 49029312.

The previous prime is 147087953. The next prime is 147087973. The reversal of 147087972 is 279780741.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 143424576 + 3663396 = 11976^2 + 1914^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (147087973) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2042853 + ... + 2042924.

Almost surely, 2^147087972 is an apocalyptic number.

147087972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

147087972 is an abundant number, since it is smaller than the sum of its proper divisors (224717826).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

147087972 is a wasteful number, since it uses less digits than its factorization.

147087972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4085787 (or 4085782 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 45.

The square root of 147087972 is about 12127.9830145000. The cubic root of 147087972 is about 527.8684675804.

The spelling of 147087972 in words is "one hundred forty-seven million, eighty-seven thousand, nine hundred seventy-two".