123270151 has 4 divisors (see below), whose sum is σ = 125110072. Its totient is φ = 121430232.

The previous prime is 123270131. The next prime is 123270181. The reversal of 123270151 is 151072321.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 123270151 - 2⁹ = 123269639 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 (123270101) 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, 919860 + ... + 919993.

It is an arithmetic number, because the mean of its divisors is an integer number (31277518).

Almost surely, 2^123270151 is an apocalyptic number.

123270151 is a deficient number, since it is larger than the sum of its proper divisors (1839921).

123270151 is an equidigital number, since it uses as much as digits as its factorization.

123270151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1839920.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 123270151 is about 11102.7091738908. The cubic root of 123270151 is about 497.6828125403.

The spelling of 123270151 in words is "one hundred twenty-three million, two hundred seventy thousand, one hundred fifty-one".