154213742 has 4 divisors (see below), whose sum is σ = 231320616. Its totient is φ = 77106870.

The previous prime is 154213711. The next prime is 154213753. The reversal of 154213742 is 247312451.

154213742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

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, 38553434 + ... + 38553437.

It is an arithmetic number, because the mean of its divisors is an integer number (57830154).

Almost surely, 2^154213742 is an apocalyptic number.

154213742 is a deficient number, since it is larger than the sum of its proper divisors (77106874).

154213742 is an equidigital number, since it uses as much as digits as its factorization.

154213742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77106873.

The product of its digits is 6720, while the sum is 29.

The square root of 154213742 is about 12418.2825704684. The cubic root of 154213742 is about 536.2587092041.

The spelling of 154213742 in words is "one hundred fifty-four million, two hundred thirteen thousand, seven hundred forty-two".