151323551 has 2 divisors, whose sum is σ = 151323552. Its totient is φ = 151323550.

The previous prime is 151323547. The next prime is 151323607. The reversal of 151323551 is 155323151.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 151323551 - 2² = 151323547 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 151323551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (151320551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75661775 + 75661776.

It is an arithmetic number, because the mean of its divisors is an integer number (75661776).

Almost surely, 2^151323551 is an apocalyptic number.

151323551 is a deficient number, since it is larger than the sum of its proper divisors (1).

151323551 is an equidigital number, since it uses as much as digits as its factorization.

151323551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2250, while the sum is 26.

The square root of 151323551 is about 12301.3637861824. The cubic root of 151323551 is about 532.8874692473.

The spelling of 151323551 in words is "one hundred fifty-one million, three hundred twenty-three thousand, five hundred fifty-one".