154139007 has 8 divisors (see below), whose sum is σ = 224202240. Its totient is φ = 93417560.

The previous prime is 154138997. The next prime is 154139023. The reversal of 154139007 is 700931451.

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

It is a cyclic number.

It is not a de Polignac number, because 154139007 - 2¹¹ = 154136959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154139107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2335407 + ... + 2335472.

It is an arithmetic number, because the mean of its divisors is an integer number (28025280).

Almost surely, 2^154139007 is an apocalyptic number.

154139007 is a deficient number, since it is larger than the sum of its proper divisors (70063233).

154139007 is a wasteful number, since it uses less digits than its factorization.

154139007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4670893.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 154139007 is about 12415.2731343293. The cubic root of 154139007 is about 536.1720680485.

The spelling of 154139007 in words is "one hundred fifty-four million, one hundred thirty-nine thousand, seven".