154106551 has 4 divisors (see below), whose sum is σ = 159420600. Its totient is φ = 148792504.

The previous prime is 154106543. The next prime is 154106567. The reversal of 154106551 is 155601451.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 155601451 = 1117 ⋅139303.

It is not a de Polignac number, because 154106551 - 2³ = 154106543 is a prime.

It is a super-2 number, since 2×154106551² = 47497658122231202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154106651) 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, 2656981 + ... + 2657038.

It is an arithmetic number, because the mean of its divisors is an integer number (39855150).

Almost surely, 2^154106551 is an apocalyptic number.

154106551 is a deficient number, since it is larger than the sum of its proper divisors (5314049).

154106551 is an equidigital number, since it uses as much as digits as its factorization.

154106551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5314048.

The product of its (nonzero) digits is 3000, while the sum is 28.

The square root of 154106551 is about 12413.9659657984. The cubic root of 154106551 is about 536.1344327077.

The spelling of 154106551 in words is "one hundred fifty-four million, one hundred six thousand, five hundred fifty-one".