151421408 has 24 divisors (see below), whose sum is σ = 298423440. Its totient is φ = 75631360.

The previous prime is 151421377. The next prime is 151421411. The reversal of 151421408 is 804124151.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39413 + ... + 43083.

It is an arithmetic number, because the mean of its divisors is an integer number (12434310).

Almost surely, 2^151421408 is an apocalyptic number.

It is an amenable number.

151421408 is a deficient number, since it is larger than the sum of its proper divisors (147002032).

151421408 is a wasteful number, since it uses less digits than its factorization.

151421408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4970 (or 4962 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 151421408 is about 12305.3406291740. The cubic root of 151421408 is about 533.0023126455.

Adding to 151421408 its reverse (804124151), we get a palindrome (955545559).

It can be divided in two parts, 1514 and 21408, that added together give a palindrome (22922).

The spelling of 151421408 in words is "one hundred fifty-one million, four hundred twenty-one thousand, four hundred eight".