151854121 has 8 divisors (see below), whose sum is σ = 157654080. Its totient is φ = 146091792.

The previous prime is 151854107. The next prime is 151854127. The reversal of 151854121 is 121458151.

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

It is not a de Polignac number, because 151854121 - 2⁷ = 151853993 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 151854121.

It is not an unprimeable number, because it can be changed into a prime (151854127) 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 7 ways as a sum of consecutive naturals, for example, 1045 + ... + 17458.

It is an arithmetic number, because the mean of its divisors is an integer number (19706760).

Almost surely, 2^151854121 is an apocalyptic number.

It is an amenable number.

151854121 is a deficient number, since it is larger than the sum of its proper divisors (5799959).

151854121 is a wasteful number, since it uses less digits than its factorization.

151854121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18815.

The product of its digits is 1600, while the sum is 28.

The square root of 151854121 is about 12322.9104111001. The cubic root of 151854121 is about 533.5095453760.

It can be divided in two parts, 15185 and 4121, that added together give a triangular number (19306 = T₁₉₆).

The spelling of 151854121 in words is "one hundred fifty-one million, eight hundred fifty-four thousand, one hundred twenty-one".