151421445 has 48 divisors (see below), whose sum is σ = 301242240. Its totient is φ = 68925312.

The previous prime is 151421429. The next prime is 151421471. The reversal of 151421445 is 544124151.

151421445 is a `hidden beast` number, since 1 + 514 + 2 + 144 + 5 = 666.

It is not a de Polignac number, because 151421445 - 2⁴ = 151421429 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 83842 + ... + 85628.

It is an arithmetic number, because the mean of its divisors is an integer number (6275880).

Almost surely, 2^151421445 is an apocalyptic number.

151421445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

151421445 is a deficient number, since it is larger than the sum of its proper divisors (149820795).

151421445 is a wasteful number, since it uses less digits than its factorization.

151421445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2074 (or 2071 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 151421445 is about 12305.3421325862. The cubic root of 151421445 is about 533.0023560588.

Adding to 151421445 its reverse (544124151), we get a palindrome (695545596).

The spelling of 151421445 in words is "one hundred fifty-one million, four hundred twenty-one thousand, four hundred forty-five".