167012261 has 16 divisors (see below), whose sum is σ = 189819840. Its totient is φ = 145670400.

The previous prime is 167012257. The next prime is 167012309. The reversal of 167012261 is 162210761.

It is a cyclic number.

It is not a de Polignac number, because 167012261 - 2² = 167012257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 167012261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (167012201) 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, 138461 + ... + 139661.

It is an arithmetic number, because the mean of its divisors is an integer number (11863740).

Almost surely, 2^167012261 is an apocalyptic number.

It is an amenable number.

167012261 is a deficient number, since it is larger than the sum of its proper divisors (22807579).

167012261 is a wasteful number, since it uses less digits than its factorization.

167012261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1796.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 167012261 is about 12923.3223669457. The cubic root of 167012261 is about 550.7013213222.

It can be divided in two parts, 1670 and 12261, that added together give a palindrome (13931).

The spelling of 167012261 in words is "one hundred sixty-seven million, twelve thousand, two hundred sixty-one".