726267157 has 16 divisors (see below), whose sum is σ = 906227712. Its totient is φ = 565452720.

The previous prime is 726267151. The next prime is 726267161. The reversal of 726267157 is 751762627.

It is not a de Polignac number, because 726267157 - 2⁷ = 726267029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726267151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111328 + ... + 117670.

It is an arithmetic number, because the mean of its divisors is an integer number (56639232).

Almost surely, 2^726267157 is an apocalyptic number.

726267157 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

It is an amenable number.

726267157 is a deficient number, since it is larger than the sum of its proper divisors (179960555).

726267157 is a wasteful number, since it uses less digits than its factorization.

726267157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7848.

The product of its digits is 246960, while the sum is 43.

The square root of 726267157 is about 26949.3442777371. The cubic root of 726267157 is about 898.8739649999.

The spelling of 726267157 in words is "seven hundred twenty-six million, two hundred sixty-seven thousand, one hundred fifty-seven".