154729214 has 4 divisors (see below), whose sum is σ = 232093824. Its totient is φ = 77364606.

The previous prime is 154729213. The next prime is 154729229. The reversal of 154729214 is 412927451.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×154729214² = 47882259330115592, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154729213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38682302 + ... + 38682305.

It is an arithmetic number, because the mean of its divisors is an integer number (58023456).

Almost surely, 2^154729214 is an apocalyptic number.

154729214 is a deficient number, since it is larger than the sum of its proper divisors (77364610).

154729214 is an equidigital number, since it uses as much as digits as its factorization.

154729214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77364609.

The product of its digits is 20160, while the sum is 35.

The square root of 154729214 is about 12439.0198166897. The cubic root of 154729214 is about 536.8555408567.

The spelling of 154729214 in words is "one hundred fifty-four million, seven hundred twenty-nine thousand, two hundred fourteen".