1540152 has 24 divisors (see below), whose sum is σ = 4171440. Its totient is φ = 513360.

The previous prime is 1540151. The next prime is 1540153. The reversal of 1540152 is 2510451.

It is an interprime number because it is at equal distance from previous prime (1540151) and next prime (1540153).

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1540151) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10624 + ... + 10767.

It is an arithmetic number, because the mean of its divisors is an integer number (173810).

2^1540152 is an apocalyptic number.

1540152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1540152 is an abundant number, since it is smaller than the sum of its proper divisors (2631288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1540152 is a wasteful number, since it uses less digits than its factorization.

1540152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21403 (or 21396 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 1540152 is about 1241.0286056332. The cubic root of 1540152 is about 115.4838342473.

Subtracting 1540152 from its reverse (2510451), we obtain a cube (970299 = 99³).

The spelling of 1540152 in words is "one million, five hundred forty thousand, one hundred fifty-two".