167252261 has 4 divisors (see below), whose sum is σ = 182457024. Its totient is φ = 152047500.

The previous prime is 167252249. The next prime is 167252279. The reversal of 167252261 is 162252761.

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 not a de Polignac number, because 167252261 - 2¹⁴ = 167235877 is a prime.

It is a super-2 number, since 2×167252261² = 55946637619224242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (167252201) 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, 7602365 + ... + 7602386.

It is an arithmetic number, because the mean of its divisors is an integer number (45614256).

Almost surely, 2^167252261 is an apocalyptic number.

167252261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

167252261 is a deficient number, since it is larger than the sum of its proper divisors (15204763).

167252261 is a wasteful number, since it uses less digits than its factorization.

167252261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15204762.

The product of its digits is 10080, while the sum is 32.

The square root of 167252261 is about 12932.6045713924. The cubic root of 167252261 is about 550.9649847150.

The spelling of 167252261 in words is "one hundred sixty-seven million, two hundred fifty-two thousand, two hundred sixty-one".