120402154 has 8 divisors (see below), whose sum is σ = 181353348. Its totient is φ = 59951040.

The previous prime is 120402151. The next prime is 120402169. The reversal of 120402154 is 451204021.

It can be written as a sum of positive squares in 2 ways, for example, as 119355625 + 1046529 = 10925^2 + 1023^2 .

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

It is not an unprimeable number, because it can be changed into a prime (120402151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124417 + ... + 125380.

Almost surely, 2^120402154 is an apocalyptic number.

120402154 is a deficient number, since it is larger than the sum of its proper divisors (60951194).

120402154 is a wasteful number, since it uses less digits than its factorization.

120402154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250040.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 120402154 is about 10972.7915317844. The cubic root of 120402154 is about 493.7927988537.

Adding to 120402154 its reverse (451204021), we get a palindrome (571606175).

The spelling of 120402154 in words is "one hundred twenty million, four hundred two thousand, one hundred fifty-four".