154149061 has 4 divisors (see below), whose sum is σ = 168162624. Its totient is φ = 140135500.

The previous prime is 154149041. The next prime is 154149091. The reversal of 154149061 is 160941451.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 154149061 - 2⁵ = 154149029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154149001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7006765 + ... + 7006786.

It is an arithmetic number, because the mean of its divisors is an integer number (42040656).

Almost surely, 2^154149061 is an apocalyptic number.

154149061 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

154149061 is a deficient number, since it is larger than the sum of its proper divisors (14013563).

154149061 is a wasteful number, since it uses less digits than its factorization.

154149061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14013562.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 154149061 is about 12415.6780322301. The cubic root of 154149061 is about 536.1837253979.

The spelling of 154149061 in words is "one hundred fifty-four million, one hundred forty-nine thousand, sixty-one".