1552090 has 8 divisors (see below), whose sum is σ = 2793780. Its totient is φ = 620832.

The previous prime is 1552087. The next prime is 1552121. The reversal of 1552090 is 902551.

It can be written as a sum of positive squares in 2 ways, for example, as 1270129 + 281961 = 1127^2 + 531^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77595 + ... + 77614.

2^1552090 is an apocalyptic number.

1552090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1552090 is a deficient number, since it is larger than the sum of its proper divisors (1241690).

1552090 is a wasteful number, since it uses less digits than its factorization.

1552090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155216.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 1552090 is about 1245.8290412412. The cubic root of 1552090 is about 115.7814453981.

The spelling of 1552090 in words is "one million, five hundred fifty-two thousand, ninety".