154055998 has 4 divisors (see below), whose sum is σ = 231084000. Its totient is φ = 77027998.

The previous prime is 154055987. The next prime is 154056029. The reversal of 154055998 is 899550451.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 899550451 = 11779 ⋅76369.

It is a super-3 number, since 3×154055998³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38513998 + ... + 38514001.

It is an arithmetic number, because the mean of its divisors is an integer number (57771000).

Almost surely, 2^154055998 is an apocalyptic number.

154055998 is a deficient number, since it is larger than the sum of its proper divisors (77028002).

154055998 is an equidigital number, since it uses as much as digits as its factorization.

154055998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77028001.

The product of its (nonzero) digits is 324000, while the sum is 46.

The square root of 154055998 is about 12411.9296646412. The cubic root of 154055998 is about 536.0758019141.

The spelling of 154055998 in words is "one hundred fifty-four million, fifty-five thousand, nine hundred ninety-eight".