740158961 has 4 divisors (see below), whose sum is σ = 755907072. Its totient is φ = 724410852.

The previous prime is 740158949. The next prime is 740158963. The reversal of 740158961 is 169851047.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 740158961 - 2⁶ = 740158897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (740158963) 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, 7873985 + ... + 7874078.

It is an arithmetic number, because the mean of its divisors is an integer number (188976768).

Almost surely, 2^740158961 is an apocalyptic number.

It is an amenable number.

740158961 is a deficient number, since it is larger than the sum of its proper divisors (15748111).

740158961 is a wasteful number, since it uses less digits than its factorization.

740158961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15748110.

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 740158961 is about 27205.8626218688. The cubic root of 740158961 is about 904.5689311795.

The spelling of 740158961 in words is "seven hundred forty million, one hundred fifty-eight thousand, nine hundred sixty-one".