154042994 has 32 divisors (see below), whose sum is σ = 281815680. Its totient is φ = 61679232.

The previous prime is 154042991. The next prime is 154043009. The reversal of 154042994 is 499240451.

154042994 = T₁₄₅₅ + T₁₄₅₆ + ... + T₁₅₈₇.

154042994 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (154042991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15452 + ... + 23384.

It is an arithmetic number, because the mean of its divisors is an integer number (8806740).

Almost surely, 2^154042994 is an apocalyptic number.

154042994 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

154042994 is a deficient number, since it is larger than the sum of its proper divisors (127772686).

154042994 is a wasteful number, since it uses less digits than its factorization.

154042994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8034.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 154042994 is about 12411.4058027284. The cubic root of 154042994 is about 536.0607179490.

The spelling of 154042994 in words is "one hundred fifty-four million, forty-two thousand, nine hundred ninety-four".