154315381 has 8 divisors (see below), whose sum is σ = 168661728. Its totient is φ = 140022000.

The previous prime is 154315379. The next prime is 154315417. The reversal of 154315381 is 183513451.

154315381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 154315381 - 2¹ = 154315379 is a prime.

It is a super-2 number, since 2×154315381² = 47626473626350322, 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 (154312381) 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, 7015 + ... + 18916.

It is an arithmetic number, because the mean of its divisors is an integer number (21082716).

Almost surely, 2^154315381 is an apocalyptic number.

154315381 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

154315381 is a deficient number, since it is larger than the sum of its proper divisors (14346347).

154315381 is a wasteful number, since it uses less digits than its factorization.

154315381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26483.

The product of its digits is 7200, while the sum is 31.

The square root of 154315381 is about 12422.3742094658. The cubic root of 154315381 is about 536.3764955706.

The spelling of 154315381 in words is "one hundred fifty-four million, three hundred fifteen thousand, three hundred eighty-one".