15151400421 has 8 divisors (see below), whose sum is σ = 20202548160. Its totient is φ = 10100593152.

The previous prime is 15151400371. The next prime is 15151400431. The reversal of 15151400421 is 12400415151.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 15151400421 - 2⁹ = 15151399909 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15151400391 and 15151400400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15151400431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48840 + ... + 180798.

It is an arithmetic number, because the mean of its divisors is an integer number (2525318520).

Almost surely, 2^15151400421 is an apocalyptic number.

It is an amenable number.

15151400421 is a deficient number, since it is larger than the sum of its proper divisors (5051147739).

15151400421 is a wasteful number, since it uses less digits than its factorization.

15151400421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170235.

The product of its (nonzero) digits is 800, while the sum is 24.

Adding to 15151400421 its reverse (12400415151), we get a palindrome (27551815572).

The spelling of 15151400421 in words is "fifteen billion, one hundred fifty-one million, four hundred thousand, four hundred twenty-one".