121631254 has 16 divisors (see below), whose sum is σ = 184067136. Its totient is φ = 60278400.

The previous prime is 121631231. The next prime is 121631261. The reversal of 121631254 is 452136121.

It is a happy number.

It is a super-2 number, since 2×121631254² = 29588323899225032, which contains 22 as substring.

It is a plaindrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133059 + ... + 133969.

It is an arithmetic number, because the mean of its divisors is an integer number (11504196).

Almost surely, 2^121631254 is an apocalyptic number.

121631254 is a deficient number, since it is larger than the sum of its proper divisors (62435882).

121631254 is a wasteful number, since it uses less digits than its factorization.

121631254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1431.

The product of its digits is 1440, while the sum is 25.

The square root of 121631254 is about 11028.6560377954. The cubic root of 121631254 is about 495.4673734212.

Adding to 121631254 its reverse (452136121), we get a palindrome (573767375).

The spelling of 121631254 in words is "one hundred twenty-one million, six hundred thirty-one thousand, two hundred fifty-four".