9152640901 has 4 divisors (see below), whose sum is σ = 9400009612. Its totient is φ = 8905272192.

The previous prime is 9152640899. The next prime is 9152640971. The reversal of 9152640901 is 1090462519.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4924390276 + 4228250625 = 70174^2 + 65025^2 .

It is a cyclic number.

It is not a de Polignac number, because 9152640901 - 2¹ = 9152640899 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 247368673 = 9152640901 / (9 + 1 + 5 + 2 + 6 + 4 + 0 + 9 + 0 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9152640971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123684300 + ... + 123684373.

It is an arithmetic number, because the mean of its divisors is an integer number (2350002403).

Almost surely, 2^9152640901 is an apocalyptic number.

It is an amenable number.

9152640901 is a deficient number, since it is larger than the sum of its proper divisors (247368711).

9152640901 is a wasteful number, since it uses less digits than its factorization.

9152640901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247368710.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 9152640901 is about 95669.4355632979. The cubic root of 9152640901 is about 2091.7774384479. Note that the first 3 decimals are identical.

The spelling of 9152640901 in words is "nine billion, one hundred fifty-two million, six hundred forty thousand, nine hundred one".