151425649 has 4 divisors (see below), whose sum is σ = 159395440. Its totient is φ = 143455860.

The previous prime is 151425619. The next prime is 151425653. The reversal of 151425649 is 946524151.

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, and also an emirpimes, since its reverse is a distinct semiprime: 946524151 = 25913 ⋅36527.

It is a cyclic number.

It is not a de Polignac number, because 151425649 - 2²¹ = 149328497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151425619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3984867 + ... + 3984904.

It is an arithmetic number, because the mean of its divisors is an integer number (39848860).

Almost surely, 2^151425649 is an apocalyptic number.

151425649 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

151425649 is a deficient number, since it is larger than the sum of its proper divisors (7969791).

151425649 is an equidigital number, since it uses as much as digits as its factorization.

151425649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7969790.

The product of its digits is 43200, while the sum is 37.

The square root of 151425649 is about 12305.5129515189. The cubic root of 151425649 is about 533.0072886960.

The spelling of 151425649 in words is "one hundred fifty-one million, four hundred twenty-five thousand, six hundred forty-nine".