740252161 has 8 divisors (see below), whose sum is σ = 810621504. Its totient is φ = 670395120.

The previous prime is 740252159. The next prime is 740252189. The reversal of 740252161 is 161252047.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 740252161 - 2¹ = 740252159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (740252101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125046 + ... + 130831.

It is an arithmetic number, because the mean of its divisors is an integer number (101327688).

Almost surely, 2^740252161 is an apocalyptic number.

It is an amenable number.

740252161 is a deficient number, since it is larger than the sum of its proper divisors (70369343).

740252161 is a wasteful number, since it uses less digits than its factorization.

740252161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256151.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 740252161 is about 27207.5754340588. The cubic root of 740252161 is about 904.6068970267.

The spelling of 740252161 in words is "seven hundred forty million, two hundred fifty-two thousand, one hundred sixty-one".