425151091 has 2 divisors, whose sum is σ = 425151092. Its totient is φ = 425151090.

The previous prime is 425151073. The next prime is 425151119. The reversal of 425151091 is 190151524.

425151091 = T₁₆₈₃₄ + T₁₆₈₃₅ + T₁₆₈₃₆.

It is an a-pointer prime, because the next prime (425151119) can be obtained adding 425151091 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 425151091 - 2²⁵ = 391596659 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (425151071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212575545 + 212575546.

It is an arithmetic number, because the mean of its divisors is an integer number (212575546).

Almost surely, 2^425151091 is an apocalyptic number.

425151091 is the 16836-th centered triangular number.

425151091 is a deficient number, since it is larger than the sum of its proper divisors (1).

425151091 is an equidigital number, since it uses as much as digits as its factorization.

425151091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 425151091 is about 20619.1922974689. The cubic root of 425151091 is about 751.9363835152.

The spelling of 425151091 in words is "four hundred twenty-five million, one hundred fifty-one thousand, ninety-one".