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2251142 = 21125571
BaseRepresentation
bin1000100101100110000110
311020100222122
420211212012
51034014032
6120125542
725064045
oct10454606
94210878
102251142
1112a8353
129068b2
1360a84a
1442855c
152e7012
hex225986

2251142 has 4 divisors (see below), whose sum is σ = 3376716. Its totient is φ = 1125570.

The previous prime is 2251129. The next prime is 2251147. The reversal of 2251142 is 2411522.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2251142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562784 + ... + 562787.

It is an arithmetic number, because the mean of its divisors is an integer number (844179).

22251142 is an apocalyptic number.

2251142 is a deficient number, since it is larger than the sum of its proper divisors (1125574).

2251142 is a wasteful number, since it uses less digits than its factorization.

2251142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1125573.

The product of its digits is 160, while the sum is 17.

The square root of 2251142 is about 1500.3806183766. The cubic root of 2251142 is about 131.0592354917.

Adding to 2251142 its reverse (2411522), we get a palindrome (4662664).

The spelling of 2251142 in words is "two million, two hundred fifty-one thousand, one hundred forty-two".

Divisors: 1 2 1125571 2251142