1545486397 has 8 divisors (see below), whose sum is σ = 1902137216. Its totient is φ = 1222802352.

The previous prime is 1545486367. The next prime is 1545486409. The reversal of 1545486397 is 7936845451.

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 1545486397 - 2¹⁹ = 1544962109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1545486317) 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, 8491593 + ... + 8491774.

It is an arithmetic number, because the mean of its divisors is an integer number (237767152).

Almost surely, 2^1545486397 is an apocalyptic number.

It is an amenable number.

1545486397 is a deficient number, since it is larger than the sum of its proper divisors (356650819).

1545486397 is a wasteful number, since it uses less digits than its factorization.

1545486397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16983387.

The product of its digits is 3628800, while the sum is 52.

The square root of 1545486397 is about 39312.6747627276. The cubic root of 1545486397 is about 1156.1700871306.

The spelling of 1545486397 in words is "one billion, five hundred forty-five million, four hundred eighty-six thousand, three hundred ninety-seven".