7457401123 has 4 divisors (see below), whose sum is σ = 7616069280. Its totient is φ = 7298732968.

The previous prime is 7457401117. The next prime is 7457401201. The reversal of 7457401123 is 3211047547.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7457401123 is a prime.

It is a super-2 number, since 2×7457401123² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7457401103) 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, 79334008 + ... + 79334101.

It is an arithmetic number, because the mean of its divisors is an integer number (1904017320).

Almost surely, 2^7457401123 is an apocalyptic number.

7457401123 is a deficient number, since it is larger than the sum of its proper divisors (158668157).

7457401123 is a wasteful number, since it uses less digits than its factorization.

7457401123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158668156.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 7457401123 is about 86356.2454197726. The cubic root of 7457401123 is about 1953.7208048926.

The spelling of 7457401123 in words is "seven billion, four hundred fifty-seven million, four hundred one thousand, one hundred twenty-three".